Patent US3157193A successfully refreshed from Google Patents.
US3157193A
Expired / Lapsed
US
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Irrigation system
Assignee: J B KNIGHT
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Filing: 1962-11-05
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Granted: 1964-11-17
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Rufus J Purtell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:46
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
AN IRRIGATION SYSTEM COMPRISING: (A) AN ELONGATED PIPE ADAPTED TO CARRY WATER UNDER PRESSURE, (B) SAID PIPE RESTING ON AND SUPPORTED BY THE GROUND WHILE WATERING, (C) A PLURALITY OF WHEELS, (D) AN ARM ROTATABLY MOUNTED ABOUT THE AXIS OF EACH WHEEL, (E) THE PIPE ATTACHED TO EACH OF THE ARMS SO THAT THE AXIS OF EACH WHEEL IS PARALLEL TO THE AXIS OF THE PIPE, (F) A FRAME FOR EACH WHEEL, (G) EACH FRAME MOUNTED FOR ROTATION ABOUT THE AXIS OF THE WHEEL RELATIVE TO BOTH THE WHEEL AND THE ARM, (H) AN ELONGATED SHAFT PARALLEL TO THE PIPE, (I) THE SHAFT JOURNALED FOR ROTATION TO EACH ARM, (J) A SPROCKET AT EACH WHEEL MOUNTED FOR ROTATION ON THE ARM, (K) MEANS FOR ROTATING EACH OF THE SPROCKETS RESPONSIVE TO ROTATION OF THE SHAFT, (L) A CHAIN EXTENDING AROUND EACH OF THE WHEELS AND SPROCKETS TO CAUSE RELATIVE ROTATION BETWEEN THE WHEEL AND ARM RESPONSIVE TO ROTATION OF THE SPROCKET, (M) A RELEASABLE LOCK MEANS ON EACH OF THE FRAME FOR LOCKING FRAME TO THE WHEEL, AND (N) MEANS ON EACH OF THE ARMS FOR RELEASING THE LOCK MEANS WHEN THE ARM IS IN A PREDETERMINED POSITION.
Claim 2
Dependent Claim
198 words
AN IRRIGATION SYSTEM COMPRISING: (A) AN ELONGATED PIPE ADAPTED TO CARRY WATER UNDER PRESSURE, (B) SAID PIPE RESTING ON AND SUPPORTED BY THE GROUND WHILE WATERING, (C) A PLURALITY OF WHEELS, (D) AN ARM ROTATABLY MOUNTED ABOUT THE AXIS OF EACH WHEEL, (E) THE PIPE ATTACHED TO EACH OF THE ARMS SO THAT THE AXIS OF EACH WHEEL IS PARALLEL TO THE AXIS OF THE PIPE, (F) A FRAME FOR EACH WHEEL, (G) EACH FRAME MOUNTED FOR ROTATION ABOUT THE AXIS OF THE WHEEL RELATIVE TO BOTH THE WHEEL AND THE ARM, (H) AN ELONGATED SHAFT PARALLEL TO THE PIPE, (I) THE SHAFT JOURNALED FOR ROTATION TO EACH ARM, (J) A SPROCKET AT EACH WHEEL MOUNTED FOR ROTATION ON THE ARM, (K) MEANS FOR ROTATING EACH OF THE SPROCKETS RESPONSIVE TO ROTATION OF THE SHAFT, (L) A CHAIN EXTENDING AROUND EACH OF THE WHEELS AND SPROCKETS TO CAUSE RELATIVE ROTATION BETWEEN THE WHEEL AND ARM RESPONSIVE TO ROTATION OF THE SPROCKET, (M) A RELEASABLE LOCK MEANS ON EACH OF THE FRAME FOR LOCKING FRAME TO THE WHEEL, AND (N) MEANS ON EACH OF THE ARMS FOR RELEASING THE LOCK MEANS WHEN THE ARM IS IN A PREDETERMINED POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |